oj.uz

답안 #244661

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
244661 2020-07-04T13:44:25 Z kimbj0709 Toll (BOI17_toll) C++14
8 / 100
 3000 ms 6236 KB 
#include<bits/stdc++.h>
using namespace std;
#define maxn 50050
#define f first
#define s second
vector<vector<pair<int,int> > > adj(maxn);
vector<int> top;
vector<int> visited(maxn,0);
void topsort(int node){
    visited[node] = 1;
    for(auto &k:adj[node]){
        if(visited[k.f]==1){
            continue;
        }
        topsort(k.f);
    }
    top.push_back(node);
}
int32_t main(){
    ios::sync_with_stdio(0);
    cin.tie(0);cout.tie(0);
    int k,no_of_vertex,no_of_edge,no_of_query;
    int input1,input2,input3;
    cin >> k >> no_of_vertex >> no_of_edge >> no_of_query;
    for(int i=0;i<no_of_edge;i++){
        cin >> input1 >> input2 >> input3;
        adj[input1].push_back({input2,input3});
    }
    for(int i=0;i<no_of_vertex;i++){
        if(visited[i]==0){
            topsort(i);
        }
    }
    reverse(top.begin(),top.end());
    vector<int> dist(maxn,INT_MAX);
    for(int i=0;i<no_of_query;i++){
        cin >> input1 >> input2;
        for(int j=0;j<dist.size();j++){
            dist[j] = INT_MAX;
        }
        int pos = -1;
        for(int j=0;j<top.size();j++){
            if(top[j]==input1){
                pos = j;
                break;
            }
        }
        dist[input1] = 0;
        for(int j=pos;j<top.size();j++){
            if(dist[top[j]]==INT_MAX){
                continue;
            }
            for(auto &kk:adj[top[j]]){
                dist[kk.first] = min(dist[kk.first],dist[top[j]]+kk.second);
            }
        }

        if(dist[input2]==INT_MAX){
            cout << -1 << "\n";
        }
        else{
            cout << dist[input2] << "\n";
        }
    }


}

Compilation message

toll.cpp: In function 'int32_t main()':
toll.cpp:38:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int j=0;j<dist.size();j++){
                     ~^~~~~~~~~~~~
toll.cpp:42:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int j=0;j<top.size();j++){
                     ~^~~~~~~~~~~
toll.cpp:49:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int j=pos;j<top.size();j++){
                       ~^~~~~~~~~~~

Subtask #1
0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 3073 ms 6236 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 3072 ms 4496 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 1920 KB Output is correct
2 Correct 6 ms 1920 KB Output is correct
3 Correct 6 ms 1896 KB Output is correct
4 Correct 6 ms 1920 KB Output is correct
5 Correct 6 ms 1920 KB Output is correct
6 Correct 8 ms 1920 KB Output is correct
7 Correct 9 ms 1920 KB Output is correct
8 Correct 11 ms 2048 KB Output is correct
9 Correct 10 ms 2048 KB Output is correct
10 Correct 36 ms 3968 KB Output is correct
11 Correct 144 ms 5012 KB Output is correct
12 Correct 189 ms 5492 KB Output is correct
13 Correct 201 ms 5816 KB Output is correct
14 Correct 372 ms 5108 KB Output is correct
15 Correct 92 ms 3840 KB Output is correct
16 Correct 92 ms 3708 KB Output is correct

Subtask #4
0 / 31.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 1920 KB Output is correct
2 Correct 6 ms 1920 KB Output is correct
3 Correct 6 ms 1896 KB Output is correct
4 Correct 6 ms 1920 KB Output is correct
5 Correct 6 ms 1920 KB Output is correct
6 Correct 8 ms 1920 KB Output is correct
7 Correct 9 ms 1920 KB Output is correct
8 Correct 11 ms 2048 KB Output is correct
9 Correct 10 ms 2048 KB Output is correct
10 Correct 36 ms 3968 KB Output is correct
11 Correct 144 ms 5012 KB Output is correct
12 Correct 189 ms 5492 KB Output is correct
13 Correct 201 ms 5816 KB Output is correct
14 Correct 372 ms 5108 KB Output is correct
15 Correct 92 ms 3840 KB Output is correct
16 Correct 92 ms 3708 KB Output is correct
17 Execution timed out 3070 ms 5052 KB Time limit exceeded
18 Halted 0 ms 0 KB -

Subtask #5
0 / 44.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 3073 ms 6236 KB Time limit exceeded
2 Halted 0 ms 0 KB -